Dokuwiki user here. Your cons are true, but compared to the cons of other ones, they are all solvable. The concern with a plug-in being required to do something is silly. It’s open source and the plugin system is limitless. If it’s ugly, make a theme. I’ve never had a problem with article titles being mutilated, but then again, I treat the file name (e.g. the url of the page) separate from the root header as you’re supposed to.

Considering your comment about search being awful in another wiki, it’s pretty good in Dokuwiki.

Considering how much you care about plain text, you should probably discount the con about file names as I’m pretty sure that’s part of why Dokuwiki does what it does. It’s an actual text file sitting in a directory that matches the path.

For what it’s worth, I admire Obsidian. If it’s a personal project with no intent to share, that’s what I’d use. For business or public hosting, I’d use (and do use, at my company) Dokuwiki.

Going to try to convert two 2-post racks into a 4-post rack today. Dreading the mess though.